Re: Additional LWLOCK_STATS statistics - Mailing list pgsql-hackers

From Jesper Pedersen
Subject Re: Additional LWLOCK_STATS statistics
Date
Msg-id 5677AF4C.10205@redhat.com
Whole thread Raw
In response to Re: Additional LWLOCK_STATS statistics  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: Additional LWLOCK_STATS statistics  (Michael Paquier <michael.paquier@gmail.com>)
List pgsql-hackers
On 12/18/2015 01:16 PM, Robert Haas wrote:
> Is this just for informational purposes, or is this something you are
> looking to have committed?  I originally thought the former, but now
> I'm wondering if I misinterpreted your intent.  I have a hard time
> getting excited about committing something that would, unless I'm
> missing something, pretty drastically increase the overhead of running
> with LWLOCK_STATS...
>

Yeah, so unless other people using LWLOCK_STATS find the additional 
information of use (w/ the extra overhead), I think we can mark it as 
"Returned with feedback" or "Rejected".

Alternative, I can redo the patch requiring an additional #define - 
f.ex. LWLOCK_STATS_QUEUE_SIZES

Best regards, Jesper




pgsql-hackers by date:

Previous
From: Konstantin Knizhnik
Date:
Subject: Re: Threads in PostgreSQL
Next
From: Albe Laurenz
Date:
Subject: Re: Experimental evaluation of PostgreSQL's query optimizer